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/*
* Copyright (C) 2005-2017 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef otbExtractROI_txx
#define otbExtractROI_txx
#include "otbExtractROI.h"
#include "itkImageRegionIterator.h"
#include "itkProgressReporter.h"
namespace otb
{
/**
*
*/
template <class TInputPixel, class TOutputPixel>
ExtractROI<TInputPixel, TOutputPixel>
::ExtractROI() //: ExtractROIBase< itk::Image<TInputPixel, VImageDimension> , itk::Image<TOutputPixel, VImageDimension> >()
{
}
/**
*
*/
template <class TInputPixel, class TOutputPixel>
void
ExtractROI<TInputPixel, TOutputPixel>
::PrintSelf(std::ostream& os, itk::Indent indent) const
{
Superclass::PrintSelf(os, indent);
}
/**
* ExtractROI can produce an image which is a different resolution
* than its input image. As such, ExtractROI needs to provide an
* implementation for GenerateOutputInformation() in order to inform
* the pipeline execution model. The original documentation of this
* method is below.
*
* \sa ProcessObject::GenerateOutputInformaton()
*/
template <class TInputPixel, class TOutputPixel>
void
ExtractROI<TInputPixel, TOutputPixel>
::GenerateOutputInformation()
{
// Call to the base class method
Superclass::GenerateOutputInformation();
}
template <class TInputPixel, class TOutputPixel>
void
ExtractROI<TInputPixel, TOutputPixel>
::ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
itk::ThreadIdType threadId)
{
itkDebugMacro(<< "Actually executing");
// Get the input and output pointers
typename Superclass::InputImageConstPointer inputPtr = this->GetInput();
typename Superclass::OutputImagePointer outputPtr = this->GetOutput();
// support progress methods/callbacks
itk::ProgressReporter progress(this, threadId, outputRegionForThread.GetNumberOfPixels());
// Define the portion of the input to walk for this thread
InputImageRegionType inputRegionForThread;
this->CallCopyOutputRegionToInputRegion(inputRegionForThread, outputRegionForThread);
// Define the iterators.
typedef itk::ImageRegionIterator<OutputImageType> OutputIterator;
typedef itk::ImageRegionConstIterator<InputImageType> InputIterator;
OutputIterator outIt(outputPtr, outputRegionForThread);
InputIterator inIt(inputPtr, inputRegionForThread);
// walk the output region, and sample the input image
while (!outIt.IsAtEnd())
{
// copy the input pixel to the output
outIt.Set(inIt.Get());
++outIt;
++inIt;
progress.CompletedPixel();
}
}
} // end namespace otb
#endif
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